MIPS: Fix bug that prevents JALR to JAL optimizations.
MIPS: Fix bug that prevents JALR to JAL optimizations.

TEST=

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/23072023

Patch from Dusan Milosavljevic <Dusan.Milosavljevic@rt-rk.com>.

git-svn-id: b158db1e4b4ab85d4c9e510fdef4b1e8c614b15b@16252 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh